42516453243 has 64 divisors (see below), whose sum is σ = 64275628032. Its totient is φ = 24777118080.

The previous prime is 42516453241. The next prime is 42516453269. The reversal of 42516453243 is 34235461524.

It is not a de Polignac number, because 42516453243 - 2¹ = 42516453241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42516453241) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26130996 + ... + 26132622.

It is an arithmetic number, because the mean of its divisors is an integer number (1004306688).

Almost surely, 2^42516453243 is an apocalyptic number.

42516453243 is a deficient number, since it is larger than the sum of its proper divisors (21759174789).

42516453243 is a wasteful number, since it uses less digits than its factorization.

42516453243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984.

The product of its digits is 345600, while the sum is 39.

The spelling of 42516453243 in words is "forty-two billion, five hundred sixteen million, four hundred fifty-three thousand, two hundred forty-three".